7870849 has 16 divisors (see below), whose sum is σ = 9349120. Its totient is φ = 6486480.

The previous prime is 7870823. The next prime is 7870867. The reversal of 7870849 is 9480787.

It is not a de Polignac number, because 7870849 - 2⁵ = 7870817 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7870879) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23614 + ... + 23944.

It is an arithmetic number, because the mean of its divisors is an integer number (584320).

Almost surely, 2^7870849 is an apocalyptic number.

7870849 is a gapful number since it is divisible by the number (79) formed by its first and last digit.

It is an amenable number.

7870849 is a deficient number, since it is larger than the sum of its proper divisors (1478271).

7870849 is a wasteful number, since it uses less digits than its factorization.

7870849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 460.

The product of its (nonzero) digits is 112896, while the sum is 43.

The square root of 7870849 is about 2805.5033416483. The cubic root of 7870849 is about 198.9178974966.

The spelling of 7870849 in words is "seven million, eight hundred seventy thousand, eight hundred forty-nine".